Write y = kx for a steady rate

Answer Key - Grade 7 Math Worksheet

Circle the best answer, or write your answer on the line.

1. Read this first

   Use the table

   hours	cups
   2	3
   4	6
   6	9

2. 1.

   Ren's faucet drips into a bowl, one plink at a time. The table shows hours and cups. Let h be hours and c be cups. What equation gives c for any h?

   c = 3h ÷ 2
3. 2.

   Bo tests a cookie recipe. The table shows cups of flour and cups of sugar. Let f be flour and c be sugar. What equation gives c for any f?

   c = 3f ÷ 4
4. 3.

   Jun's old printer hums along at a steady rate. The table shows minutes and pages. Let x be minutes and y be pages. What equation gives y for any x?

   y = 7x ÷ 2
5. 4.

   Tala bikes 6 miles in 1/2 hour at a steady speed. Let h be hours and d be miles. What equation gives d for any h?

   d = 12h
6. 5.

   Luz mixes 2 cups of juice with 5 cups of water for punch. Let w be cups of water and q be cups of juice. What equation gives q for any w?

   q = 2w ÷ 5
7. 6.

   Noah bikes at a steady speed. The equation is d = 12h, where h is hours and d is miles. How many miles after 3/4 hour?

   9
8. 7.

   Milo's cookie rule is c = 3f ÷ 4, where f is cups of flour and c is cups of sugar. How many cups of sugar go with 8 cups of flour?

   6
9. 8.

   Tala reads by the rule y = 2x ÷ 3, where x is days and y is chapters. How many chapters after 21 days?

   14
10. 9.

    Pia bakes with the rule c = 3f ÷ 4, where f is cups of flour and c is cups of sugar. Which story fits the rule?

    • Add 3/4 to the cups of flour to get the cups of sugar
    • 4/3 cups of sugar for each cup of flour
    • 3/4 cup of sugar for each cup of flour
    • 3/4 cup of flour for each cup of sugar
11. 10.

    Esme's circle follows g = 5u ÷ 2, where u is minutes and g is gallons. Which story fits the rule?

    • Add 5/2 to the minutes to get the gallons
    • 2/5 gallon for each minute
    • 5/2 minutes for each gallon
    • 5/2 gallons for each minute